Bed-bottom



(Nol/maal.) y

W.- L. KEEPHART & J. C. HAGKETT.

BBD BOTTOM.

No. 503 323. PatentedAug. 15,1893.

UNITED STATES PATENT OFFICE.

VILLIAM L. KEEPI-IART AND JACOB O. HAOKETT, OF VVILKES-BARR,PENNSYLVANIA.

BED-BoTToM.

SPECIFICATION forming part of Letters Patent No. 503,323, dated August15, 1893.

Application filed June l2, 1893.

To a/ZZ whom t may concern:

Beitknown that we,WILL1AM L. KEEPHART and JACOB (l. HACKETT, citizens ofthe United States, residing at Wilkes-Barr, in the county of Luzerne andState of Pennsylvania, have invented certain new and useful Improvementsin Bed-Bottoms, of which the following is a specification.

Our invention relates to bed bottoms, and more particularly to thatclass in which a Woven wire fabric is combined with spiral supportingsprings.

The invention consists in a novel means for caging the rough projectingtwisted ends of the coils of the fabric, and means for connecting saidfabric to the spiral springs.

In the class of bed bottoms to which my invention belongs, the ends ofthe wire fabric which are at right angles to the individual coils orwires of which the fabric is composed are formed into a transverseseries of loops by twisting together the ends of adjacent coils insuccessive pairs. These twisted ends form ragged projections which wouldinjure bed clothing and other articles and it has been customary to bendthem inward or to guard them in some suitable manner.

Our improved means for guarding the rough ends will now be described.

In the accompanying drawings, Figure l is a plan View of one corner of abed bottom involving our invention. Fig. 2 is a View of a modification.Fig. 3 is a section on the line 3-3 of Fig. l, and Fig. 4r is a View ofan old caging device.

The woven Wire fabric A is composed of spiral strands of wireintercoiled together in the usual manner. The ends of these strands areconnected together in pairs by twisting them as shown at c. Thus theadjacent strands a', o?, form one pair which are twisted together andthe strands h', h2, form another pair. There is thus formed a row of endloops d. It has heretofore been proposed to cage or guard the twistedends c by passing an additional spiral through the end loops d, in whichcase the twisted ends would lie in the axial line of the spiral. By thisarrangenient2 however, the rough twisted ends would Serial No. 477,265.(No model.)

be exposed between the adjacent coils of the spiral as shown in Fig. 4,and asecond spiral is required to sufficiently protect them.

In the present invention a straight wire or rod D is passed through theend loops d and the caging coil E is connected to the wire D at pointsbetween the loops d and also hetween the twisted ends c. One eifect ofthis arrangement is that the twisted ends c are directly under and areprotected by the outer bends e of the coil E, which bends formprotecting arches over the rough ends. Another advantage is that the rodT distributes the strain which may be applied to any one part of it overa number of the loops d and thus prevents the untwistin g of any of theends c.

IVhen it is desired to connect the fabric to a series of verticalspirals F as shown in Figs. l and 3 of the drawings, the additional coilG is used, said coil being intercoiled with the caging coil E and yalsoat various points with the spirals F. As shown in the drawings, three orfour turns of the outer coil G are connected to the upper turn of eachspiral F and to the opposite turns of the caging coil E While theintermediate turns ot' the outer coil are simply connected to the cagingcoil.

Having described our invention, what we claim isl. A section of Wovenwire fabric having a series of parallel coils or wires intercoiledtogether and connected in pairs at each end by twisting together thefree ends of the adjacent successive pairs, thereby forming at each endof the fabric a transverse row of loops d having rough ends c projectingbeyond saidloops, a rod or wire running through the row of transverseloops at each end of the fabric, and a caging coil extending across ateach end of the fabric and united thereto by being coiled around saidrod between the said end loops and twisted ends c, thereby caging ateach end of the fabric the rough project ing twisted ends of theparallel wire coils, substantially as described.

2. A bed bottom consisting of a series of vertical spirals connectedtogether, a Woven wire fabric supported on said spirals and composed ofa series of parallel wire coils intercoiled together and connected inpairs at the supporting spirals, substantially as de- 1o each end byspil-ally twisting together the adscribed.

jacent ends of parallel coils, thereby forming In testimony whereof Weaffix oursignatures at each end of the fabric a transverse row of inpresence of two Witnesses.

loops d, wires or rods D extending across WILLIAM L. KEEPHART. the endsof the fabric through the loops d, JACOB C. HACKETT. caging coils Eintercoiled with the Wires -D Witnesses:

between the loops d, and connecting coils =G H. EARRING,

intereoiled with the caging 'coils and with W. L. RAEDER.

